Ind. Code § 22-3-3-5
(a) The pecuniary liability of the employer for a service or product herein required shall be limited to the following:
(d) All claims by a medical service provider for payment for services or products are against the employer and the employer's insurance carrier, if any, and must be made with the board under IC 22-3-2 through IC 22-3-6 . After June 30, 2011, a medical service provider must file an application for adjustment of a claim for a medical service provider's fee with the board not later than two (2) years after the receipt of an initial written communication from the employer, the employer's insurance carrier, if any, or an agent acting on behalf of the employer after the medical service provider submits a bill for services or products. To offset a part of the board's expenses related to the administration of medical service provider reimbursement disputes, a medical service facility shall pay a filing fee of sixty dollars ($60) in a balance billing case. The filing fee must accompany each application filed with the board. If an employer, an employer's insurance carrier, or an agent acting on behalf of the employer denies or fails to pay any amount on a claim submitted by a medical service facility, a filing fee is not required to accompany an application that is filed for the denied or unpaid claim. A medical service provider may combine up to ten (10) individual claims into one (1) application whenever:
As amended by P.L.170-1991, SEC.4; P.L.216-1995, SEC.1; P.L.258-1997(ss), SEC.4; P.L.168-2011, SEC.3; P.L.275-2013, SEC.4.